add memory API, remove HardReset from IEmulator

BizHawk.Emulation/Consoles/Calculator/TI83.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Globalization;
 using System.IO;
-using System.Text;
 using System.Collections.Generic;
 using BizHawk.Emulation.CPUs.Z80;
 
@@ -440,5 +439,8 @@ namespace BizHawk.Emulation.Consoles.Calculator
 		{
 			return new byte[0];
 		}
-	}
+
+        public IList<MemoryDomain> MemoryDomains { get { throw new NotImplementedException(); } }
+        public MemoryDomain MainMemory { get { throw new NotImplementedException(); } } 
+    }
 }

BizHawk.Emulation/Consoles/Gameboy/Gameboy.cs

@@ -842,5 +842,8 @@ namespace BizHawk.Emulation.Consoles.Gameboy
 		}
 
         public bool DeterministicEmulation { get; set; }
+
+        public IList<MemoryDomain> MemoryDomains { get { throw new NotImplementedException(); } }
+        public MemoryDomain MainMemory { get { throw new NotImplementedException(); } }
     }
 }

BizHawk.Emulation/Consoles/PC Engine/PCEngine.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using BizHawk.Emulation.CPUs.H6280;
@@ -104,6 +105,7 @@ namespace BizHawk.Emulation.Consoles.TurboGrafx
                 RomPages = RomData.Length / 8192;
             }
             Cpu.ResetPC();
+            SetupMemoryDomains();
         }
 
         public int Frame { get; set; }
@@ -275,5 +277,19 @@ namespace BizHawk.Emulation.Consoles.TurboGrafx
             writer.Close();
             return buf;
         }
+
+        private void SetupMemoryDomains()
+        {
+            var domains = new List<MemoryDomain>(1);
+            var MainMemoryDomain = new MemoryDomain("Main Memory", Ram.Length, Endian.Little,
+                addr => Ram[addr & 0x7FFF],
+                (addr, value) => Ram[addr & 0x7FFF] = value);
+            domains.Add(MainMemoryDomain);
+            memoryDomains = domains.AsReadOnly();
+        }
+
+        private IList<MemoryDomain> memoryDomains;
+        public IList<MemoryDomain> MemoryDomains { get { return memoryDomains; } }
+        public MemoryDomain MainMemory { get { return memoryDomains[0]; } }
     }
 }

BizHawk.Emulation/Consoles/Sega/Genesis/Genesis.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 using BizHawk.Emulation.CPUs.M68K;
 using BizHawk.Emulation.CPUs.Z80;
@@ -187,5 +188,8 @@ namespace BizHawk.Emulation.Consoles.Sega
         {
             return new byte[0];
         }
+
+        public IList<MemoryDomain> MemoryDomains { get { throw new NotImplementedException(); } }
+        public MemoryDomain MainMemory { get { throw new NotImplementedException(); } }
     }
 }

BizHawk.Emulation/Consoles/Sega/SMS/SMS.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using System.Linq;
@@ -7,14 +8,10 @@ using BizHawk.Emulation.Sound;
 
 /*****************************************************
 
-  VDP:
+  TODO: 
   + HCounter
-  + Old TMS video modes (SG-1000)
-  
-  GENERAL:
   + Port 3F emulation (Japanese BIOS)
   + Try to clean up the organization of the source code. 
-  + SG-1000 support
 
 **********************************************************/
 
@@ -105,6 +102,8 @@ namespace BizHawk.Emulation.Consoles.Sega
                 InitSegaMapper();
             else
                 InitCodeMastersMapper();
+
+            SetupMemoryDomains();
         }
 
         public void LoadGame(IGame game)
@@ -333,5 +332,29 @@ namespace BizHawk.Emulation.Consoles.Sega
         }
 
         private readonly string[] validRegions = {"Export", "Japan"};
+
+        private IList<MemoryDomain> memoryDomains;
+
+        private void SetupMemoryDomains()
+        {
+            var domains = new List<MemoryDomain>(3);
+            var MainMemoryDomain = new MemoryDomain("Main RAM", SystemRam.Length, Endian.Little, 
+                addr => SystemRam[addr & RamSizeMask], 
+                (addr, value) => SystemRam[addr & RamSizeMask] = value);
+            var VRamDomain = new MemoryDomain("Video RAM", Vdp.VRAM.Length, Endian.Little, 
+                addr => Vdp.VRAM[addr & 0x3FFF], 
+                (addr, value) => Vdp.VRAM[addr & 0x3FFF] = value);
+            var SaveRamDomain = new MemoryDomain("Save RAM", SaveRAM.Length, Endian.Little, 
+                addr => SaveRAM[addr%SaveRAM.Length], 
+                (addr, value) => { SaveRAM[addr%SaveRAM.Length]=value; SaveRamModified=true;});
+
+            domains.Add(MainMemoryDomain);
+            domains.Add(VRamDomain);
+            domains.Add(SaveRamDomain);
+            memoryDomains = domains.AsReadOnly();
+        }
+
+        public IList<MemoryDomain> MemoryDomains { get { return memoryDomains; } }
+        public MemoryDomain MainMemory { get { return memoryDomains[0]; } }
     }
 }

BizHawk.Emulation/Interfaces/Base Implementations/NullEmulator.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 
 namespace BizHawk
@@ -35,5 +36,8 @@ namespace BizHawk
         public int BufferHeight { get { return 192; } }
         public int BackgroundColor { get { return 0; } }
         public void GetSamples(short[] samples) { }
+
+        public IList<MemoryDomain> MemoryDomains { get { return new List<MemoryDomain>(0); } }
+        public MemoryDomain MainMemory { get { return null; } }
     }
 }

BizHawk.Emulation/Interfaces/IEmulator.cs

@@ -1,4 +1,6 @@
-using System.IO;
+using System;
+using System.Collections.Generic;
+using System.IO;
 
 namespace BizHawk
 {
@@ -12,7 +14,6 @@ namespace BizHawk
 
         void LoadGame(IGame game);
         void FrameAdvance(bool render);
-        void HardReset();
         
         int Frame { get; }
         bool DeterministicEmulation { get; set; }
@@ -28,7 +29,37 @@ namespace BizHawk
         void SaveStateBinary(BinaryWriter writer);
         void LoadStateBinary(BinaryReader reader);
         byte[] SaveStateBinary();
+
+        // ----- Client Debugging API stuff -----
+        IList<MemoryDomain> MemoryDomains { get; }
+        MemoryDomain MainMemory { get; }
     }
 
+    public class MemoryDomain
+    {
+        private readonly string Name;
+        private readonly int Size;
+        private readonly Endian Endian;
+
+        public readonly Func<int, byte> PeekByte;
+        public readonly Action<int, byte> PokeByte;
+
+        public MemoryDomain(string name, int size, Endian endian, Func<int, byte> peekByte, Action<int, byte> pokeByte)
+        {
+            Name = name;
+            Size = size;
+            Endian = endian;
+            PeekByte = peekByte;
+            PokeByte = pokeByte;
+        }
+
+        public override string ToString()
+        {
+            return Name;
+        }
+    }
+    
+    public enum Endian { Big, Little, Unknown }
+
     public enum DisplayType { NTSC, PAL }
 }

BizHawk.MultiClient/MainForm.cs

@@ -16,7 +16,7 @@ namespace BizHawk.MultiClient
     {
         private Control renderTarget;
 		private RetainedViewportPanel retainedPanel;
-
+        private string CurrentlyOpenRom;
         private int SaveSlot = 0;   //Saveslot sytem
 
         private bool EmulatorPaused = false;
@@ -271,6 +271,8 @@ namespace BizHawk.MultiClient
 			{
 				new BizHawk.Emulation.Consoles.Gameboy.Debugger(Global.Emulator as Gameboy).Show();
 			}
+
+            CurrentlyOpenRom = path;
         	return true;
         }
 
@@ -315,7 +317,7 @@ namespace BizHawk.MultiClient
             if (Global.ClientControls["Hard Reset"])
             {
                 Global.ClientControls.UnpressButton("Hard Reset");
-                Global.Emulator.HardReset();
+                LoadRom(CurrentlyOpenRom);
             }
 
             if (Global.ClientControls["Fast Forward"])
@@ -473,7 +475,7 @@ namespace BizHawk.MultiClient
 
         private void powerToolStripMenuItem_Click(object sender, EventArgs e)
         {
-            Global.Emulator.HardReset();
+            LoadRom(CurrentlyOpenRom);
         }
 
         private void resetToolStripMenuItem_Click(object sender, EventArgs e)